18803234911 has 2 divisors, whose sum is σ = 18803234912. Its totient is φ = 18803234910.

The previous prime is 18803234893. The next prime is 18803234927. The reversal of 18803234911 is 11943230881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18803234911 - 2¹³ = 18803226719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18803234011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9401617455 + 9401617456.

It is an arithmetic number, because the mean of its divisors is an integer number (9401617456).

Almost surely, 2^18803234911 is an apocalyptic number.

18803234911 is a deficient number, since it is larger than the sum of its proper divisors (1).

18803234911 is an equidigital number, since it uses as much as digits as its factorization.

18803234911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 18803234911 in words is "eighteen billion, eight hundred three million, two hundred thirty-four thousand, nine hundred eleven".